Hi all,
I was reading IEEE 80-2013 (Guide for Safety in AC Substation Grounding) and came across Figure 30 which shows current division during a substation fault.
Please see the below snapshot.
I am having difficulty in following KCL to arrive at the numbers shown in the diagram. I can see and...
Hi Bill,
Thank you for the detailed reply! Everything you have said makes sense.
For the record, I never underestimate electricians. :) I've been fortunate enough to work with and learn from some good ones. I try to put myself in the installer's position whenever possible... I figured...
Hi folks,
I'm currently sizing the secondary feed for a 1000kva 13.8kV:600V transformer. The feed will be underground in 4" conduits.
If someone could check my secondary cable sizing calculations, I'd be grateful!
I am assuming copper conductors, rated for 75 deg C. My calculations are as...
Hello,
I am inspecting some equipment which includes steel wire braided cables coming into a control panel via cable glands.
The cable glands are not the armored cable type glands where the steel braid is grounded inside the gland; rather they are the normal pass-through type of glands. Each...
